LIVERMORE — Evan Wolfe threw a perfect game, retiring all 15 batters he faced with eight strikeouts to lead Pleasanton National to a 12-0, five-inning win over Georgetown of Jenison, Mich. in the opening game of the inaugural Intermediate 50/70 Little League World Series at Max Baer Park.

Wolfe threw a first pitch strike to 12 batters and threw 39 strikes in all to complete the first perfect game in the tournament’s one-day history.

Pleasanton National now faces Nogales, Ariz. in the second round of the United States winners bracket on Wednesday at 6 p.m. Nogales had a first round bye. All games are at Max Baer Park.

Mitch Benson finished 2 for 3 with two runs and three RBIs, including a two-run homer in the third inning to give Pleasanton National a 9-0 lead. Pleasanton National, the District 57 champions, scored twice in the first inning and five times in the second inning to take control.

Cal O’Loughlin scored three times and Max Heverly and Drew Kobayashi each scored twice in the win.

Pleasanton, coached by Dave Lander, raced through the District 57 tournament, beating Livermore 10-2 and Granada 12-3 before defeating Danville 6-2 in the semifinals. In the final, Pleasanton knocked off Granada 9-2 again for the title.

In the other U.S. Bracket game from Tuesday, Post Oak of Houston beat Collier Township/Cartiers Valley of Pennsylvania 6-4. Port Oak will face Rutherfordton, N.C. on Wednesday at 3 p.m.